Hahald nielsen



H. NKELSEN,

FiLUNG MATERIAL FOR ABSORPHON', REACTION, MIXING, AND COOLiNG YDWEHS.

APPLICATION HLED vmac. 29. 1915- l 30?, 6 3 5- Pat-cnted June 24, 191%}.

HARALZD NIELSEN,

FILLING MATERIAL FOR SAd I 7 0F STREATHAM, LONIDGN, ENGLAND.

ABSORPTION, REACTION, MIXING, AND COOLING TOWERS.

Specification of Letters Yatent.

Patented June 2% 1919.

Application filed December 29, 1916. Serial No. 139,695.

1/ u (ZZZ whom. it may concern Be it known that I, HARALD Nucnsnn, a subject of the King of Denmark, residing at 8 Madeira road, Streatham, London. England, have invented new and useful improvements in Filling Material for Absorption, Reaction. Mixing, and Cooling Towers, of which the, following is a specification.

In the chemical or other industries where absorption, react ion, mining or cooling towers and the like are required, one of the most important factors which govern the size of tower, given the. amount of liquor or gas to be dealt with per unit of time, is the packing or filling material with which the tower is stacked, it being understood that the object of the filling material is to fa liquor and gases.

It is clear that the larger the scrubbingor contact surface such a filling posse "es and the greater the free space, that is to s y,

' the smaller the percentage of the solid body tioii. Fig. 3 a plan iew method of stackin or.

of the material is in proportion to the volume taken up when the filling material is placed in position in a tower for instance, the smaller the tower can be in order to carry out a iven amount of work.

A filling material or element which fuliils the above stated conditions is the one described in the complete specification of British 1. atent No. 26269, of 15th January, 1913. Practice has, however, shown that in order to facilitate the "packing of large, especially high towers, this form of filling element must be considerably altered to suit the varying conditions. Besides the twisted winged element as therein described is liable to free ureowing to the outer edges being free and unsupported. The improved form which is eminently suitable for the purpose shown in the ace-o1npanying drawing and differs Widely from that described in the above mentioned specification. Figure 1 shows a single elen'ient in perspective elevaot' Fig.1. Fig. 3 a assembling *the clot; Ant. Fig. i a partial sectional elevation of a modification in the construction of the acting Referring to the drawings it Wild be seen Inents.

tion, mixing and or tubular prismatic. shaped body of rcfractory material. The top and bottom edges of the surfaces (1/ of the filling element are made horizontal to secure the regular superimposition thereof.

These surfaces u may be in Figs. 1 to 3. or corrugated, as shown in Fig. 4.; in tainsrerse section and curved inwardly or outwardly. or they may be smooth or roughened warding to requirements, and. the element may be composed of three or more sides or surfaces.

In order to utilize these filling elements in a tow r or the like, they can by the way of an example be placed together as illustrated in Fig. thereby formin a series of cells or hone; comb-like structure, presenting the greatest possible surface combined with large free spaces 1), b for the liquor or gases between which a reaction, absorption or the like is to take place.

The special -features of the filling material as above des i'bcd are, that the curved surfaces tend to force the gas to assume a whirling motion which insures that new gas particles constantly come in contact with wetted surfaces, that no dust pockets are formed where grit or dirt can lodge, that it is completely self-draining and no capillary action can take place whereby the proper liquor distribution can be jeopardized. and further the filling material can bennade very cheaply from any desired raw material required for special processes.

Claims:

1. A filling element for absorption, rea tion. mixing and cooling to vers comprising a three-sided hollow body of refractory material the acting surfaces of which are helically twisted while are made horizontal to secure the regular superimposition thereof.

2. A fillin element for absorption, reaccooling towers comprising a plurality of surfaces of refractory material joined together at the edges and helically twisted to form a hollow prismatic body with their top and bottom edges made smooth as shown 69 horizontal to secure the regular superimposition thereof.

,8: A filiing material for absorption, rcac- Lion, mixing and roofing tam'ors cmnprising an aggregation of elements each with pl'urality of surfaces joined together at the edges and. hel'irally twiw'e l to form a holaozsas low prismatic body, to constitute when S- wrinmosvd a hmmycomb-likc structure, subsizintiuiiy as described.

In tost'imm'rv whorvof I have signed my name to this specification.

HA A LD NI ELS'EN. 

